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Evgen [1.6K]
3 years ago
14

How do i find the value of a variable?

Mathematics
1 answer:
photoshop1234 [79]3 years ago
5 0

To find the value of a variable you must know the basics of pre-Algebra.


Example:


2x+9=39


To find he answer of this you must subtract 9 from both sides

Then you are left with…


2x=30

Since 2x=30 means 2 times x equals 30

You can divide 2 from both sides to find the answer

Which is…

x=15



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2-1/2 cups water minus 1-2/3 cups water =
weeeeeb [17]

The difference between the mixed numbers is equal to 5/6.

<h3>How to perform the subtraction between the two mixed numbers?</h3>

A mixed number is a number that is written as a whole number plus an improper fraction, here we want to compute:

(2 + 1/2) - (1 + 2/3)

We can group the whole numbers and the fractions, so we get:

(2 - 1) + (1/2 - 2/3)

Now we can simplify this so we get:

(2 - 1) + (1/2 - 2/3)

= 1 + (3/6 - 4/6) = 1 - 1/6 = 6/6 - 1/6 = 5/6

We conclude that the difference between the mixed numbers is equal to 5/6.

If you want to learn more about mixed numbers:

brainly.com/question/1746829

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7 0
2 years ago
How to factor completely 2x^2+19x+24
Gnom [1K]
2=2*1,1*2
24=1*24,2*12,6*4,3*8
19=2*8+3

2x²+19x+24
(2x+3)(x+8)

or
2x(x+8)+3(x+8)
2x²+16x+3x+24
2x²+19x+24
6 0
3 years ago
(−5k<br> ​3<br> ​​ −6k+1)+(−6k<br> ​2<br> ​​ +5k)
Fittoniya [83]

Remove unnecessary parenthesis.

-5k 3 - 6k +1 - 6k 2 + 5k (simplify each term) -15k - 6k + 1 - 12k +5k = -28k +1

Answer: 28k + 1

7 0
3 years ago
Read 2 more answers
Need help converting an equation to intercept form...
pickupchik [31]
<span>y = <span>x2 </span>+ 5x + 36
y = (<span>x2 </span>− 5x − 36)</span> <span>y = (<span>x2 </span>− 9x + 4x − 36)</span> <span>y = [x (x − 9) + 4 (x − 9)]</span> <span>y = (x − 9)(x + 4)</span>
6 0
3 years ago
Mr. Logan agrees to give you a loan of 25,000 to start your business, but charge you 7% interest. How much will you have to pay
Hitman42 [59]

Answer:

26000

Step-by-step explanation:

3 0
2 years ago
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